Mounting portion of water jet pump of personal watercraft, and personal watercraft

A water-jet propulsion personal watercraft comprising:

• a body including a hull having a water intake and a deck covering the hull from above;
• a water jet pump mounted in a pump room formed on a rear bottom portion of the hull and including an impeller that rotates to eject water taken in from the water intake to thereby propel the watercraft;
• a water intake passage through which water is guided from the water intake to the water jet pump;
• a tubular pump casing configured to accommodate the impeller;
• and
• a pump bracket configured to fasten the pump casing to the body and to couple the water intake passage to the pump casing with the pump casing fastened to the body;
• wherein the pump casing includes an internal fitting portion in a front portion thereof, and the internal fitting portion is provided on an outer peripheral surface thereof with a groove extending in a circumferential direction of the internal fitting portion and is configured to be internally fitted to the pump bracket;
• wherein the pump bracket includes a casing receiving portion in a rear portion thereof and is configured to be externally fitted to the internal fitting portion of the pump casing;
• and
• wherein the pump casing is configured to be mountable to the pump bracket in such a manner that the internal fitting portion is internally fitted to the casing receiving portion of the pump bracket from rearward with a ring-shaped seal element fitted into the groove, and an outer peripheral surface of the internal fitting portion and an inner peripheral surface of the casing receiving portion are sealed by the seal element.